There are a bunch of places not too far off property. It really depends on what you want a resort to offer.
If you just want inexpensive accommodations and limited amenities: Windsor Hills is great from what I have read
If you want to stay on Disney property: Wyndham Bonnet Creek. This resort, IMO, is better than anything on Disney property. 2BR resort rooms can be had for as little as $500 for 7-nights. Going rate is $7/1,000 points. Do a search for points charts.
Orange Lake Resort, Sheraton Vistana, Reunion Resort are some others and there are more. There are also home rentals that are great as well. It takes a lot more research, patience, and work but the savings are incredible. A 2BR unit at a DVC resort will run $500-$700 a night. That is the same price as 7-nights offsite.